Compounds useful for treating diseases of the central or peripheral nervous system in mammals have formulae I-XIII: ##STR1## wherein ring A or A' together with the spiro-carbon atom constitutes a bridged or unbridged ring containing one or two ring nitrogen atoms; and the other symbols have specified values, subject to certain conditions.
Compounds of formula (I)
as well as pharmaceutically acceptable salts thereof can be used in the form of pharmaceutical compositions, wherein A
1
, A
2
, R
1
, R
2
, R
3
and R
4
have the significance given in claim
1.
A novel series of 2-amino-5-spiro substituted oxazolin-4-ones and intermediates for making said compounds. These compounds are prepared by first converting the appropriately substituted cycloketone to the corresponding cyclocyanohydrin; converting this compounds to the corresponding hydroxy acid; esterifying the hydroxy acid, and finally cyclizing the hydroester to form the 2-amino-5-spiro substituted oxazolin-4-one. These compounds exhibit central nervous system activity and are active as either stimulants or depressants, and some are useful as performance enhancers.
Tricyclic Spiro Compound Comprising Acyl Group Bound to Nitrogen Atom in the Ring
申请人:Nishida Hidemitsu
公开号:US20090076015A1
公开(公告)日:2009-03-19
It is intended to provide an anticoagulant that has an extremely excellent FXa inhibitory action and an extremely weak hERG channel inhibitory action and can be orally administered, which is a compound represented by the following formula (I) or a pharmaceutically acceptable salt thereof.
The present invention relates to a compound represented by the following formula I or a pharmaceutically acceptable salt thereof; wherein R
1
, R
2
, and y are defined herein. The present invention further relates to compositions that include the compound of the present invention as well as a method of treating a patient from endometreosis or uterine fibroids.